Imagine just swimming in complete darkness and then it starts getting brighter for some reason and then you turn around a BAM! ghost/crystal/invisible/spectre/grand/squishy/ leviathan thing is about to eat your face!
I would love to see a flying bird type Leviathan that dives in the water to try and attack the player and maybe scoop them out of the water. Imagine seeing a 50 ft alien bird diving at you from the sky like this. in LeviathansComment by ConthrarAugust 2015